8021 Aluminum Foil
| Alloy Grade | 8000 Series 8021 |
| Thickness | 0.005-0.5mm |
| Width | 80-2800mm |
| Length | Customization |
| Type | Jumbo Roll |
| Surface | Oxidation, Coating, Mirror, etc. |
8021 aluminum foil roll description
8021 aluminum foil is a thin sheet material made of aluminum ingots and aluminum plates through hot rolling, cold rolling and other processes. It has excellent physical and chemical properties and is a high-purity, high-performance aluminum material. 8021 aluminum foil is an aluminum alloy foil specially used for packaging, such as food packaging, pharmaceutical packaging (cold-formed aluminum foil packaging).
Aluminum 8021 foil element content
The purity of 8021 aluminum foil is as high as 99.5%. After mixing with other small amounts of metal elements, the performance has been improved. It has excellent electrical conductivity, thermal conductivity, corrosion resistance and plasticity.
| Al 8021 Foil Chemical Composition (%) | |||||||||
| Alloy | Al | Fe | Si | Mn | Cu | Mg | Zn | Ti | Others |
| Content | 98.0% – 99.0% | ≤ 1.3% | ≤ 0.7% | ≤ 0.2% | 0.1% | ≤ 0.1% | ≤ 0.1% | ≤ 0.1% | ≤ 0.15% |
8021 aluminum foil thickness
The thickness of 8021 aluminum foil usually ranges from 0.018mm to 0.2mm. Huawei aluminum foil factory can produce different thicknesses according to different applications.
Ultra-thin 8021 aluminum foil (0.018mm – 0.03mm): Mainly used for soft packaging of food and medicine, such as blister packaging.
Thin 8021 aluminum foil (0.03mm – 0.1mm): Used for beverage packaging, composite materials, etc.
Medium-thick 8021 aluminum foil (0.1mm – 0.2mm): Suitable for industrial insulation materials, composite packaging and some automotive materials.
Aluminum foil 8021 product specifications
| Alloy | 8000 series 8021 foil |
| Temper | O, H14, H16, H18, H19, H22, H24 |
| Thickness (mm) | 0.02-0.2 |
| Width (mm) | 100-1600 |
| Length (mm) | C |
| Standard | ASTM B373 |
| Application | battery soft pack, lunch box material, food packaging foil, etc. |
Mechanical properties of aluminum foil 8021
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HV) | Application |
|---|---|---|---|---|---|
| 8021 O | 70 – 100 | ≤ 40 | ≥ 25 | 20 – 30 | Flexible packaging, pharmaceutical foils |
| 8021 H14 | 150 – 180 | 120 – 150 | 4 – 8 | 40 – 50 | Beverage packaging, automotive insulation |
| 8021 H16 | 180 – 210 | 150 – 180 | 2 – 6 | 50 – 60 | Semi-rigid containers, industrial foils |
| 8021 H18 | 200 – 240 | 180 – 220 | ≤ 3 | 60 – 70 | Battery foils, rigid packaging |
| 8021 H19 | 220 – 270 | ≥ 200 | ≤ 2 | 70 – 80 | High-strength applications, industrial uses |
| 8021 H22 | 120 – 150 | 100 – 130 | 8 – 10 | 30 – 40 | Food and pharmaceutical packaging |
| 8021 H24 | 140 – 170 | 110 – 140 | 6 – 8 | 40 – 50 | Laminated materials, construction foils |
Alloy properties of 8021 aluminum foil
8021 aluminum foil is a high-performance aluminum alloy material with excellent physical and chemical properties.
Excellent barrier properties
8021 foil has strong air tightness and excellent barrier properties for oxygen, water vapor, light, etc., which can effectively prevent items from getting damp, oxidized, and deteriorating. It has good corrosion resistance and is suitable for storing and packaging sensitive substances (such as medicines and food).
Good mechanical properties
8021 foil has high strength and toughness, strong tear resistance within a certain thickness range, and is especially suitable for pharmaceutical blister packaging and composite packaging materials.
Excellent surface properties
8021 has a smooth and clean surface, no oil spots, no pinholes, and is easy to coat and print. It can adapt to a variety of surface treatments, and single-sided light, double-sided light or composite coating can be achieved to meet the needs of different uses.
Safety and hygiene:
8021 aluminum foil undergoes strict production and testing processes to ensure that it is non-toxic and tasteless, meets food safety and hygiene standards, and can be widely used in the field of food packaging.
Wide range of thickness
The thickness of 8021 aluminum foil generally ranges from 0.006mm to 0.2mm, and can be customized according to customer needs.
Diverse alloy states
There are many alloy states, such as O, H14, H16, etc., to meet the application needs of different fields.
Easy to process
8021 aluminum foil is flexible and suitable for cold rolling and hot rolling processes. It can be made into a variety of thickness specifications according to needs.
8021 aluminum is used for cold-formed aluminum foil
8011 aluminum foil and 8021 aluminum foil are both good pharmaceutical packaging materials. AL 8011 is mainly used for ptp blister foil, and 8021 aluminum foil is more used for alu alu foil packaging materials. 8021 aluminum foil is widely used in cold-formed aluminum foil, especially in the field of pharmaceutical packaging. 8021 is one of the important materials for cold-formed pharmaceutical blister packaging (such as aluminum-plastic blister).
Cold-formed aluminum foil is a multi-layer material composed of an aluminum foil layer, a nylon layer (OPA) and a polyvinyl chloride layer (PVC). 8021 aluminum foil is usually used as a key barrier layer. As a barrier layer, 8021 aluminum foil can effectively prevent the penetration of moisture, oxygen and ultraviolet rays, ensuring the stability and safety of drugs. During the cold forming process, 8021 aluminum foil can withstand deep drawing without cracking, and is suitable for pharmaceutical blister packaging of various complex shapes. Even at a thin thickness, 8021 aluminum foil still has sufficient strength and ductility to ensure that the product maintains integrity after cold forming.
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